diff options
| author | Artyom Tarasenko <atar4qemu@gmail.com> | 2016-04-18 11:52:43 +0200 |
|---|---|---|
| committer | Artyom Tarasenko <atar4qemu@gmail.com> | 2017-01-18 22:03:44 +0100 |
| commit | 7dd8c0760ee197420273a7dfeab13bf54f6bbd8d (patch) | |
| tree | 824a7cbd8507684543ae8fb3d134d5e4cab87617 /target/sparc/ldst_helper.c | |
| parent | d00a2334433483d1751d94aabdf47985a68010d3 (diff) | |
target-sparc: implement UA2005 ASI_MMU (0x21)
Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Diffstat (limited to 'target/sparc/ldst_helper.c')
| -rw-r--r-- | target/sparc/ldst_helper.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target/sparc/ldst_helper.c b/target/sparc/ldst_helper.c index 4f55388338..c69167e78d 100644 --- a/target/sparc/ldst_helper.c +++ b/target/sparc/ldst_helper.c @@ -1396,6 +1396,18 @@ uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr, ret = env->scratch[i]; break; } + case ASI_MMU: /* UA2005 Context ID registers */ + switch ((addr >> 3) & 0x3) { + case 1: + ret = env->dmmu.mmu_primary_context; + break; + case 2: + ret = env->dmmu.mmu_secondary_context; + break; + default: + cpu_unassigned_access(cs, addr, true, false, 1, size); + } + break; case ASI_DCACHE_DATA: /* D-cache data */ case ASI_DCACHE_TAG: /* D-cache tag access */ case ASI_ESTATE_ERROR_EN: /* E-cache error enable */ @@ -1714,6 +1726,25 @@ void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val, env->scratch[i] = val; return; } + case ASI_MMU: /* UA2005 Context ID registers */ + { + switch ((addr >> 3) & 0x3) { + case 1: + env->dmmu.mmu_primary_context = val; + env->immu.mmu_primary_context = val; + tlb_flush_by_mmuidx(CPU(cpu), MMU_USER_IDX, MMU_KERNEL_IDX, -1); + break; + case 2: + env->dmmu.mmu_secondary_context = val; + env->immu.mmu_secondary_context = val; + tlb_flush_by_mmuidx(CPU(cpu), MMU_USER_SECONDARY_IDX, + MMU_KERNEL_SECONDARY_IDX, -1); + break; + default: + cpu_unassigned_access(cs, addr, true, false, 1, size); + } + } + return; case ASI_QUEUE: /* UA2005 CPU mondo queue */ case ASI_DCACHE_DATA: /* D-cache data */ case ASI_DCACHE_TAG: /* D-cache tag access */ |